Single-row cylindrical roller bearings
NU3344M/HC Cylindrical Roller Bearing Dimensions & Specifications
NU3344M/HC cylindrical roller bearing: 220 mm bore (d), 460 mm outside diameter (D), 180 mm width (B). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 220 mm |
|---|---|
| Outside diameter D | 460 mm |
| Width B | 180 mm |
| Mass | 140.6 kg |
| Catalogue dynamic load Cr | 2130 kN |
| Catalogue static load Cor | 3300 kN |
| Grease-lubricated speed grease | 800 rpm |
| Oil-lubricated speed oil | 1100 rpm |
Mounting dimensions & additional parameters (5)
| Abutment dimension Da Da | 431 mm |
|---|---|
| Abutment dimension db db | 245 mm |
| Maximum fillet ra ra | 4 mm |
| Maximum fillet rb rb | 4 mm |
| Roller envelope diameter Fw Fw | 284 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which mounting dimensions are listed for NU3344M/HC?
The NU3344M/HC catalogue lists Da = 431 mm; ra ≤ 4 mm. Check these symbols against the bearing drawing and the shaft/housing shoulders; they are not shaft or housing fit tolerances.
What speed values are available for NU3344M/HC?
The listed values for NU3344M/HC are grease: 800 rpm; oil: 1100 rpm. These catalogue references do not determine a safe operating speed on their own. Confirm load, clearance, lubrication and heat conditions for the application.
What is the reference mass of NU3344M/HC?
The catalogue reference mass for NU3344M/HC is 140.6 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.